poweroff command seems to be out of order

Hi,
. on poweroff the BBAI64 completes the shutdown procedure but then it does not power off. Id est, for example, the on board led remain active.
. this seems a bug, i can post somewhere else. Please let me know if you prefer so.
. from serial console i see

#> poweroff 
...
[  OK  ] Stopped Load Kernel Modules.
[  OK  ] Stopped Create System Users.
[  OK  ] Stopped Remount Root and Kernel File Systems.
[  OK  ] Reached target Shutdown.
[  OK  ] Reached target Final Step.
[  OK  ] Finished Power-Off.
[  OK  ] Reached target Power-Off.
[ 5418.514392] systemd-shutdown[1]: Syncing filesystems and block devices.
[ 5418.831052] systemd-shutdown[1]: Sending SIGTERM to remaining processes...
[ 5418.843146] systemd-journald[384]: Received SIGTERM from PID 1 (systemd-shutdow).
[ 5418.890712] systemd-shutdown[1]: Sending SIGKILL to remaining processes...
[ 5418.902910] systemd-shutdown[1]: Unmounting file systems.
[ 5418.909523] [1028]: Remounting '/' read-only in with options 'errors=remount-ro'.
[ 5418.927490] EXT4-fs (mmcblk1p2): re-mounted. Opts: errors=remount-ro
[ 5418.938677] systemd-shutdown[1]: All filesystems unmounted.
[ 5418.944874] systemd-shutdown[1]: Deactivating swaps.
[ 5418.950283] systemd-shutdown[1]: All swaps deactivated.
[ 5418.955543] systemd-shutdown[1]: Detaching loop devices.
[ 5418.962597] systemd-shutdown[1]: All loop devices detached.
[ 5418.968176] systemd-shutdown[1]: Stopping MD devices.
[ 5418.973357] systemd-shutdown[1]: All MD devices stopped.
[ 5418.978663] systemd-shutdown[1]: Detaching DM devices.
[ 5418.983900] systemd-shutdown[1]: All DM devices detached.
[ 5418.989291] systemd-shutdown[1]: All filesystems, swaps, loop devices, MD devices and DM devices detached.
[ 5419.005602] systemd-shutdown[1]: Syncing filesystems and block devices.
[ 5419.012278] systemd-shutdown[1]: Powering off.
[ 5419.036542] reboot: Power down
ERROR:   System Off: operation not handled.

Right now this is normal… I’m not 100% who is suppost to shutdown everything… Either it’s the kernel, OpTee or ATF…

Regards,